Narcotraffic and Traffic

Narcotraffic noun - Traffic in illegal drugs.

Traffic and narcotraffic are semantically related. In some cases you can use "Traffic" instead a noun "Narcotraffic".

Traffic noun - The buying and selling of goods especially on a large scale and between different places.

Narcotraffic and traffic are semantically related. Sometimes you can replace term "Narcotraffic" with "Traffic", this nouns are similar.